At this point you should be a Lieutenant with about 1400 Prestige, 35000 Food, 15000 Lumber, 20000 Stone, 25000 Iron

48. Build Farm level 2 Speed it up

49. Build 6 Sawmill level 3 Speed it up

50. Build 3 Quarry level 3 Speed it up

Continue building up 10 Sawmill level 3 and 7 Quarry level 3
Build cottages to keep population from going red

51. Build Academy level 2 when resources allow Turn in quest

52. Research Masonry

53. Build Barracks level 2 Turn in quest

54. Research Mining

55. Build Academy level 3 Turn in quest

56. Research Informatics Speed it up

57. Research Military Tradition

58. Train 10 Scouts in your Barracks

59. Build Barracks level 3 Turn in quest

60. Train 10 Pikemen

At this point you should be a Knight with about 2100 Prestige, 40000 Food, 15000 Lumber, 7500 Stone, 10000 Iron

61. Build Marketplace level 2

Maximize all your production squares with Sawmills
Keep only one farm, one quarry and one ironmine
Always sell your lumber and buy the other resources (lumber is the most expensive resource)
It is the Walmart model of maximizing profit per square foot!

62. Start buying and selling resources

63. Create your second city
To see how, hover over the city icon in the bottom-right corner next to the Buy button

To conquer a Flat (where your new city will be), train an army of 200 warriors
Click Map and attack the closest level 1 or 2 Flat

In your second city

64. Build Rally Spot Speed it up

65. Move your 250 workers back to your home city
Click Map
Select your home city
Click Reinforce
Send all workers home

66. When they return, go to your home city
Click Map
Select your new city
Click Transport
Select all your workers
Send equal amounts of lumber, stone and iron, resources your new city needs to grow

In your second city

67. Build Cottage level 2 Speed it up

68. Build Inn Speed it up

69. Build Feasting Hall

70. Reinforce one high-politics hero from your home city to your new city

71. Maximize your production squares as before

72. Build Town Hall level 2

73. Build Academy
Without an Academy, you don't get the food and lumber science bonus

74. Build Academy level 2
Without an Academy level 2, you don't get the stone and iron bonus

75. Build Town Hall level 3
This opens up new resource squares
Click City and build on the new squares